yes, you should weight them once a day, with a digital scale that can read in ounces. and with the feeding, i havent done it, but many have on here.
Feeding Your Kitten
What To FeedFeeding TechniquesKitten Feeding Schedule
While your kitten is warming up, you can prepare something for him to eat. If this little kitten was hypothermic (abnormally-low body temperature) and in shock when you found him, you should only give him children's Pedialyte (or an equivalent) for the first two hours, until he warms up. Then switch to kitten formula. If you are using children's Pedialyte, dilute it half and half with water that has been boiled and cooled. If you don't have any Pedialyte, you can make a home-made version. This does not need to be diluted.
Keeping Good Records
After every feed, keep a record of how much your kitten has taken. This will help you work out whether he is drinking enough throughout the day. Also, to keep track of his development, if you can, weigh him at the same time every day, using kitchen or small postage scales. A kitten that is doing well will put on between 10-20 grams a day. Keep a record of his weight so that you can identify any weight loss quickly. Your vet will also be glad that you took the time to keep these records, in case something happens down the road.
At birth, weight should be approx 3-3.4 ounces.
At age 1 week weight should be approx. 4 ounces.
At age 2 weeks, weight should be approx. 7 ounces.
At age 3 weeks, weight should be approx. 10 ounces.
At age 4 weeks weight should be approx. 13 ounces.
At age 5 weeks, weight should be approximately 1 pound.
By the end of the 8th week, kittens should weigh approximately 2.2 pounds.
Of course, all these weights are approximate. You may have a kitten that is slightly under or over these weights and still be perfectly healthy. If ever you have a concern about your kitten, or he just doesn't seem 'right', consult a vet. On the internet there is a pretty extensive kitty calendar you can use.
To feed your kitten, use a dropper, syringe, doll's bottle or ideally, a specifically designed nursing bottle, available from most grocery and pet stores. If you are using a bottle, the size of the hole in the nipple is critical for success. If the bottle is turned upside down and formula dribbles from the nipple, the hole is too large. Use of this nipple may cause choking and formula ending up in your kitten's lungs. If the bottle is turned upside down and formula comes out only after considerable squeezing of the bottle, the hole is too small. Use of this nipple will result in your kitten becoming discouraged and refusing to nurse. The hole is the proper size if the bottle is turned upside down and formula drips slowly from the nipple.
The nipples supplied with a nurser bottle or kits are not pierced. To pierce the nipple, wet it thoroughly inside and out with the boiled, cooled water and then heat a small pin or needle in a flame until it glows red. Quickly pierce the top of the nipple and remove the pin. Test the flow of the bottle and repeat the process if the hole is too small. Rinse the nipple thoroughly with more boiled cooled water, making sure to squeeze some water through the hole.
Warm the formula to body temperature - about 100oF. Do this by immersing the bottle in a cup of hot water or by removing the nipple and warming in the microwave for a few seconds. Shake the bottle well after warming to make sure there are no hot spots in the formula and check the temperature. It should be warm but never hot. Never re-use formula that you have warmed. Discard it and use fresh formula for each feed.
Place your kitten on it's tummy on a soft surface such as a blanket or towel and gently place the nipple into his mouth. Tilt the bottle up slightly so the nipple is full of milk. He should automatically begin sucking. If he refuses to take the nipple, place a little dab of Karo syrup on his tongue to stimulate his sucking response. Never squeeze formula into his mouth as this can cause choking. Feed your kitten until he is comfortably full, not until the stomach is tight and distended. When he is full, small bubbles of formula will form around his mouth and he will spit the nipple out. Now you must burp him, just like a human baby. Hold him on your chest, lap or shoulder and gently rub and pat his back with two fingers until he burps.